US5212556A - Electronic still camera having interval reproducing and erasing capability - Google Patents

Electronic still camera having interval reproducing and erasing capability Download PDF

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Publication number
US5212556A
US5212556A US07/658,166 US65816691A US5212556A US 5212556 A US5212556 A US 5212556A US 65816691 A US65816691 A US 65816691A US 5212556 A US5212556 A US 5212556A
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United States
Prior art keywords
image processing
processing mode
continuous
erasing
reproducing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/658,166
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English (en)
Inventor
Kimiaki Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2030490A external-priority patent/JP2816734B2/ja
Priority claimed from JP3049190A external-priority patent/JPH03235204A/ja
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Assigned to ASAHI KOGAKU KOGYO KABUSHIKI KAISHA, 36-9, MAENOCHO 2-CHOME, ITABASHI-KU, TOKYO, JAPAN reassignment ASAHI KOGAKU KOGYO KABUSHIKI KAISHA, 36-9, MAENOCHO 2-CHOME, ITABASHI-KU, TOKYO, JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: OGAWA, KIMIAKI
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
    • H04N1/2125—Display of information relating to the still picture recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
    • H04N1/2129—Recording in, or reproducing from, a specific memory area or areas, or recording or reproducing at a specific moment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
    • H04N1/2137—Intermediate information storage for one or a few pictures using still video cameras with temporary storage before final recording, e.g. in a frame buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/21—Intermediate information storage
    • H04N1/2104—Intermediate information storage for one or a few pictures
    • H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
    • H04N1/215—Recording a sequence of still pictures, e.g. burst mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2101/00—Still video cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3261—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal
    • H04N2201/3264—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of multimedia information, e.g. a sound signal of sound signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S358/00—Facsimile and static presentation processing
    • Y10S358/906—Hand-held camera with recorder in a single unit

Definitions

  • This invention relates to an electronic still camera having both a continuous reproducing mode and a continuous erasing mode in which a video signal and an audio signal are recorded on a magnetic disk and the recorded signals can be selectively reproduced and/or erased therefrom.
  • the reproducing or erasing of signals from the magnetic disk are carried out individually for each track, or the signals of all the tracks are reproduced or erased at the same time.
  • the signal producing erasing operation for each selected track individually.
  • an object of this invention is to provide an electronic still camera in which the signals of a relatively large number of tracks can be successively reproduced or erased in one operation and no additional elements are required to adapt the camera to have multifunctions.
  • an additional element normally irrelevant to the reproducing or erasing operation is used when either the continuous erasing mode or the continuous reproducing mode is selected.
  • the additional elements is not limited to those for use in the continuous shooting mode only; however, it is preferable to employ the continuous shooting mark because it is displayed for a continuous type of operation, and therefore when it is displayed together with the PLAY or ERASE mark, the operator can easily recognize that the continuous reproducing mode or the continuous erasing mode has been selected.
  • FIGS. 2(a), 2(b) and 2(c) show examples of an LCD display in the electronic still camera for an erasing operation
  • FIG. 3 is a flow chart of the erasing operation in the camera
  • FIGS. 4(a), 4(b) and 4(c) show the LCD display for a playback operation
  • FIGS. 5(a) and 5(b) are flow charts of the playback operation.
  • a floppy disk (magnetic disk) 1 is rotated by a spindle motor 2 which is controlled by a spindle motor control circuit 3.
  • a magnetic head 4 operates to record video signals and/or audio signals on the rotating floppy disk and reproduces or erases the signals therefrom. In this operation, the magnetic head 4 is moved radially of the floppy disk by a tracking motor 5 which is controlled by a tracking motor control circuit 6.
  • the magnetic head 4 is driven by recording, reproducing and erasing circuit 8, to perform a selected operation.
  • a system controller 7 comprising a microcomputer controls the tracking motor control circuit 6 and the circuit 8, and controls a display control circuit 11 to display predetermined information on a liquid crystal display unit (LCD) 12. Furthermore, the system controller 7 performs control operations for the data recording, reproducing and erasing operations on the floppy disk 1.
  • the system controller 7 receives signals which are provided when a trigger switch (release switch) 9, an exposure correcting switch 10, a mode switch 13, and a select switch 14 are operated.
  • the trigger switch 9 is operated to start the data recording, reproducing or erasing operation, the exposure correcting switch 10 is operated for exposure correction, and the mode switch 13 is operated to select one of the various modes such as data recording, data reproducing and data erasing.
  • the numerical data displayed on the LCD 12 can be increased by operating an "up" switch 15, and it can be decreased by operating a "down" switch 16.
  • a predetermined strobe mode can be inputted by operating a strobe mode switch 17.
  • FIGS. 2(a), 2(b) and 2(c) show examples of the display on the LCD 12.
  • Various marks are displayed on the LCD 12.
  • the flickering display position for the marks is moved vertically by operating the mode switch 13, and is moved horizontally by operating the select switch 14.
  • the flickering display mark is moved to a single mode mark (one rectangular mark) representing the recording of video signals corresponding to one picture, e.g. a REC mark representing a recording mode, a NORMAL mark representing a normal mode for the recording of video signals or audio signals, an AUTO mark in the white balance display mark WB, and 7-segment elements indicating year, month and day, or o'clock, minute and second.
  • a self timer mark for setting the self timer for setting the self timer
  • a continuous shooting mark three overlapped rectangular marks representing a mode of recording video signals at one, two or five pictures per second, and the digit "1", “2” or "5" representing the number of pictures to be shot per second are successively caused to flicker.
  • the REC mark representing the recording mode a PLAY mark representing a playback mode, an ERASE mark representing an erasing mode, and a MONITOR mark representing a monitor mode are selectively displayed.
  • the NORMAL mark representing the normal mode for recording video signals or audio signals, and an AV mark representing an AV mode for recording video signals and audio signals in combination are selectively displayed.
  • an AUTO mark representing an auto mode a cloudy weather mark (a pattern of a cloud) representing a cloudy weather mode, a fine weather mark (a pattern of the sun) representing a fine weather mode, a fluorescent lamp mark (a pattern of a fluorescent lamp) representing a fluorescent lamp mode, and an incandescent lamp mark (a pattern of an incandescent lamp mark) representing an incandescent lamp mode are successively selected in the display.
  • the digits representing year, month and day are selectively displayed.
  • a battery mark is provided on the left side of the 7-segment elements. When the voltage of the battery is decreased to a certain value, the battery mark is caused to flicker.
  • a disk mark is provided on the right side of the 7-segment elements, to indicate whether or not a floppy disk is loaded. That is, the disk mark is turned on when a floppy disk is loaded.
  • the flickering position is moved until a desired mode is selected, and the mode thus selected is applied to the system controller 7.
  • the marks other than the mark representing the mode being selected are also lighted, but steadily.
  • the AUTO mark, the ON mark, and the OFF mark are selectively lighted.
  • the trigger switch 9 When, with the recording mode selected in the above- described manner (the REC mark is caused to flicker), the trigger switch 9 is operated, the system controller 7 drives the spindle motor 2 through the spindle motor control circuit 3, to rotate the floppy disk 1.
  • the tracking motor 5 is driven through the tracking motor control circuit 6, so that the magnetic head 4 is moved to a predetermined track.
  • the track position is indicated by the two digits to the left of the REC mark. Under this condition, predetermined video signals or audio signals are supplied to the magnetic head 4, so that they are recorded on the predetermined track.
  • the exposure correcting switch 10 is operated in the recording mode, an exposure correcting mark ⁇ EF is lighted, and the numerical data displayed by the 7-segment elements to the right of the exposure correcting mark are changed into the exposure correcting value specified.
  • the exposure correcting value is increased; when the "down" switch 16 together with the exposure correcting switch 10 is operated, the exposure correcting value is decreased.
  • the trigger switch 9 is operated together with the exposure correcting switch 10, the photographing operation is carried out with the exposure set to the exposure correcting value.
  • the continuous shooting mark is lighted, so that, of the digits "1", “2" and "5", the digit corresponding to the selected number of pictures to be shot per second is caused to flicker.
  • the trigger switch 9 when the trigger switch 9 is operated, the video signals for the specified number of pictures per second are continuously recorded.
  • the system controller 7 When the playback mode is specified (the PLAY mark flickers) and the trigger switch 9 is operated, the system controller 7 operates the spindle motor 2 through the spindle motor control circuit 3 to rotate the floppy disk 1, and operates the tracking motor 5 through the tracking motor control circuit 6, to move to the magnetic head 4 to a predetermined track. As a result, the signals recorded on the accessed track of the floppy disk 1 are read by the magnetic head 4, and the outputs of the latter are applied to a reproducing device such as a CRT monitor and loudspeaker unit 21.
  • a reproducing device such as a CRT monitor and loudspeaker unit 21.
  • the system controller 7 drives the LCD 12 through the display control circuit 11, so that the ERASE mark representing the erasing mode is caused to flicker, as shown in FIG. 2(a).
  • Steps S1 and S2 When, with the magnetic head 4 moved to the selected track, the trigger switch 9 is operated, the flickering of the ERASE mark is ceased, but it is kept lighted (Steps S1 and S2). If the exposure correcting switch 10 has not been operated yet, the floppy disk 1 is rotated, and the circuit 8 is activated to perform the erasing operation (Steps S3 through S6).
  • the erasing operation is achieved by recording the carrier used for the FM modulation of the recording signal with the speed of rotation of the floppy disk 1 set to lower than the ordinary record and playback speed of 3600 rpm. This is equivalent to the erasing of data with higher frequency signals, with the floppy disk rotated at its ordinary rpm.
  • Step S3 and S9 When, in the erasing mode, one of the switches irrelevant to the erasing operation (the exposure correcting switch 10 in the case of FIG. 3; however, it may be any other switch) is operated, one of the marks unrelated to the erasing operation (the continuous shooting mark in the case of FIG. 3; however, it may be any other mark) is lighted as shown in FIG. 2(c) (Steps S3 and S9). Under this condition, the spindle motor 2 is rotated, the circuit 8 is driven, and one track is erased (Steps S10, S11 and S12).
  • the exposure correcting switch 10 is operated again, and the system controller 7 determines whether or not a continuous erasing operation releasing instruction has been issued, or whether or not a predetermined final track (the 50-th track in the case of FIG. 3) has been erased.
  • the magnetic head 4 is moved radially inwardly (or outwardly) to the next track (Steps S13, S14 and S15).
  • the system controller 7 determines that the continuous erasing operation releasing instruction has been issued and the final track (the fiftieth track when the erasing operation is made radially inwardly of the disk, and the first track when the erasing operation is made radially outwardly of the disk) has been erased, the continuous shooting mark is turned off, the rotation of the floppy disk 1 is stopped, and the ERASE mark
  • the erasing operation should be started from the first track with the magnetic head 4 moved thereto.
  • the continuous shooting mark which is to be displayed when the continuous shooting mode is selected is displayed at the time the continuous erasing mode is selected; for this purpose, an additional mark for the continuous erasing mode only may be provided.
  • an additional mark for the continuous erasing mode only may be provided.
  • the provision of such a mark is disadvantageous in that it is necessary to increase the area of the LCD 12. Therefore, it is preferable that, as described above, a mark irrelevant to the erasing operation is used when the continuous erasing mode is selected.
  • the mark is not limited to the continuous shooting mark only; however, it is preferable to employ the continuous shooting mark because it is displayed for a continuous type of operation, and therefore when it is displayed together with the ERASE mark, the operator can easily recognize that the continuous erasing mode has been selected.
  • the exposure correcting switch 10 the original function of which is not for selection of the continuous erasing mode is used to select the continuous erasing mode, but an additional switch just for selecting the continuous erasing mode may be provided.
  • the use of the exposure correcting switch for the selection of the continuous erasing mode reduces the number of components and the number wiring steps, with the result that the manufacturing cost is decreased, and the camera dimensions are reduced.
  • a mode for a reproducing track is inputted (Step S31 in FIG. 5(b)). That is, the recording, reproducing and erasing circuit 8 demodulates the reproducing signal provided by the magnetic head 4, to read the DPSK signal recorded together with the video signal, or the control data recorded together with the audio signal.
  • the signal or data thus read contains a signal which indicates that only the video signal is recorded in the track (a V mode) or only the audio signal is recorded in the track (an A mode), or both the video signal and the audio signal are recorded, in combination, in the track (an AV mode).
  • the system controller 7 reads this mode information from the circuit 8.
  • the AV mark is lighted, and the magnetic head 4 is moved by the tracking motor 5 under the control of the tracking motor control circuit 6 to the track where the audio signal has been recorded (Steps S32 through S34).
  • the audio signal is reproduced from the track, and is temporarily stored in a memory in the circuit 8 (Step S35).
  • the magnetic head 4 is moved to the track where the corresponding video signal has been recorded, so that the video signal is reproduced from the track (Step S36 and S37).
  • the video signal thus reproduced is supplied to the monitor and loudspeaker unit 21, where it is displayed.
  • the audio signal stored in the memory after being expanded, is supplied to the monitor and loudspeaker unit 21.
  • the video signal and its corresponding audio signal are outputted simultaneously.
  • Step S38 When the mode for the reproducing track is not the AV mode, the NORMAL mark is lighted (Step S38, FIG. 4(b)). If what is recorded in the track is an audio signal, then the audio signal is temporarily stored in the memory in the circuit 8, and is then read out and reproduced (Step S39 and S40). If what is recorded is a video signal, then it is reproduced and supplied to the monitor and loudspeaker unit 21 as it is, where it is displayed (Step S41). "In” the case where the exposure correcting switch 10 is not operated and yet in this signal reproducing operation, the trigger switch 9 is not operated again, and the reproducing operation is continued until an instruction is issued to terminate it (Steps S5 and S6 in FIG. 5(a)).
  • the continuous shooting mark is lighted as shown in FIG. 4(c) (Steps S4 and S11), and if the V mode is detected for the reproducing track, the system controller 7 activates an interval timer built therein When the interval timer counts a predetermined period of time (for instance five seconds), the magnetic head 4 is moved one track radially inwardly (or outwardly) by the tracking motor 5 (Steps S14 and S22) At the same time, the track number displayed on the LCD 12 is increased by one. And similarly as in the above-described case, the playback subroutine is carried out (Step S23). This operation is repeatedly carried out, so that the video signals each corresponding to five seconds are successively reproduced from the tracks.
  • a predetermined period of time for instance five seconds
  • the magnetic head 4 Upon arrival at the last track (the innermost track), the magnetic head 4 is moved to the first track (the outermost track). Thus, all the tracks of the floppy disk 1 are reproduced one after another
  • Step S6 is effected.
  • Steps S16, S18, and S7 throug S10) If, before the interval timer counts the predetermined period of time, the trigger switch 9 is operated again to suspend the reproduction, the continuous shooting mark is turned off, and the reproduction is suspended (Steps S16, S18, and S7 throug S10).
  • the audio signal reproducing time is given precedence over the interval timer's set time. Therefore, the video signal is reproduced until the end of the reproducing audio signal, and when the audio signal is ended, reproduction of the next track is carried out (Steps S19 and S22).
  • Steps S20, S21, S17 and S18 If, before the reproducing audio signal is ended, the exposure correcting switch 10 or the trigger switch 9 is operated again, the interval reproduction or the continuous reproduction is suspended (Steps S20, S21, S17 and S18).
  • the continuous shooting mark which is to be displayed when the continuous shooting mode is selected is displayed at the time the continuous reproducing mode is selected; for this purpose, an additional mark for the continuous reproducing mode only may be provided.
  • the provision of such a mark is disadvantageous in that it is necessary to increase the area of the LCD 12. Therefore, it is preferable that, as described above, a mark irrelevant to the reproducing operation is used when the continuous reproducing mode is selected.
  • the mark is not limited to the continuous shooting mark only; however, it is preferable to employ the continuous shooting mark because it is displayed for a continuous type of operation, and therefore when it is displayed together with the PLAY mark, the operator can easily recognize that the continuous reproducing mode has been selected.
  • continuous refers to the continuous erasing or reproduction of a plurality of tracks. In the continuous reproduction mode, each track is successively reproduced in intervals. Thus, the terms continuous reproduction and interval reproduction are synonymous.
  • the exposure correcting switch 10 the original function of which is not for selection of the continuous reproducing mode is used to select the continuous reproducing mode, but an additional switch just for selecting the continuous reproducing mode may be provided.
  • the use of the exposure correcting switch for the selection of the continuous reproducing mode reduces the number of components and the number of wiring steps, with the result that the manufacturing cost is decreased, and the camera dimensions are reduced.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
US07/658,166 1990-02-09 1991-02-07 Electronic still camera having interval reproducing and erasing capability Expired - Lifetime US5212556A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2-30491 1990-02-09
JP2030490A JP2816734B2 (ja) 1990-02-09 1990-02-09 電子スチルカメラ
JP2-30490 1990-02-09
JP3049190A JPH03235204A (ja) 1990-02-09 1990-02-09 電子スチルカメラ

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US (1) US5212556A (de)
DE (1) DE4103877C2 (de)
FR (1) FR2659516B1 (de)
GB (1) GB2242560B (de)

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US5339199A (en) * 1990-05-25 1994-08-16 Asahi Kogaku Kogyo Kabushiki Kaisha Still video device with selectable successive erasure of audio and/or video tracks
US5473370A (en) * 1990-09-03 1995-12-05 Fuji Photo Film Co., Ltd. Electronic still-video camera, and playback apparatus thereof being capable of storing image data when the storage capacity of a memory card is exceeded
US5485200A (en) * 1990-12-26 1996-01-16 Asahi Kogaku Kogyo Kabushiki Kaisha Operational information renewing and memorizing apparatus and method for a photographing instrument
US5497238A (en) * 1992-12-03 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Controlling erasing of tracks of a recording medium used with a still video apparatus
US5541656A (en) * 1994-07-29 1996-07-30 Logitech, Inc. Digital camera with separate function and option icons and control switches
US5579048A (en) * 1993-07-30 1996-11-26 Canon Kabushiki Kaisha Selection apparatus using an observer's line of sight
EP0859269A2 (de) * 1997-02-17 1998-08-19 SANYO ELECTRIC Co., Ltd. Elektronisches Bildaufnahme/Bildwiedergabegerät und Verfahren
US5983028A (en) * 1996-02-22 1999-11-09 Asahi Kogaku Kogyo Kabushiki Kaisha Usage control device
US6184930B1 (en) * 1992-10-29 2001-02-06 Sony Corporation Electronic still camera with dual contact shutter switch for picture review
US6324346B1 (en) 1998-05-19 2001-11-27 Asahi Kogaku Kogyo Kabushiki Kaisha Data erasure control system for camera
US6630954B1 (en) * 1996-12-17 2003-10-07 Canon Kabushiki Kaisha Image pickup apparatus including image erasure function and erasure status notification function
US6876393B1 (en) * 1999-02-10 2005-04-05 Nikon Corporation Electronic camera with battery capability consideration
EP1555605A2 (de) * 2004-01-19 2005-07-20 Ricoh Company, Ltd. Bilderzeugungsgerät, Löschungsverfahren, und Festplatteverwaltungsverfahren

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US5956084A (en) * 1990-09-03 1999-09-21 Fuji Photo Film Co., Ltd. Electronic still-video camera, and playback apparatus therefor being capable of storing image data when the storage capacity of a memory card is exceeded
US5473370A (en) * 1990-09-03 1995-12-05 Fuji Photo Film Co., Ltd. Electronic still-video camera, and playback apparatus thereof being capable of storing image data when the storage capacity of a memory card is exceeded
US6249313B1 (en) 1990-09-03 2001-06-19 Fuji Photo Film Co., Ltd. Electronic still-video camera, and playback apparatus therefor being capable of storing image data when the storage capacity of memory card is exceeded
US5485200A (en) * 1990-12-26 1996-01-16 Asahi Kogaku Kogyo Kabushiki Kaisha Operational information renewing and memorizing apparatus and method for a photographing instrument
US6184930B1 (en) * 1992-10-29 2001-02-06 Sony Corporation Electronic still camera with dual contact shutter switch for picture review
US5497238A (en) * 1992-12-03 1996-03-05 Asahi Kogaku Kogyo Kabushiki Kaisha Controlling erasing of tracks of a recording medium used with a still video apparatus
US5579048A (en) * 1993-07-30 1996-11-26 Canon Kabushiki Kaisha Selection apparatus using an observer's line of sight
US6424376B1 (en) 1993-07-30 2002-07-23 Canon Kabushiki Kaisha Selection apparatus using an observer's line of sight
US5541656A (en) * 1994-07-29 1996-07-30 Logitech, Inc. Digital camera with separate function and option icons and control switches
US5983028A (en) * 1996-02-22 1999-11-09 Asahi Kogaku Kogyo Kabushiki Kaisha Usage control device
US7663672B2 (en) 1996-12-17 2010-02-16 Canon Kabushiki Kaisha Image pickup apparatus and recording control apparatus
US6630954B1 (en) * 1996-12-17 2003-10-07 Canon Kabushiki Kaisha Image pickup apparatus including image erasure function and erasure status notification function
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EP0859269A2 (de) * 1997-02-17 1998-08-19 SANYO ELECTRIC Co., Ltd. Elektronisches Bildaufnahme/Bildwiedergabegerät und Verfahren
EP0859269A3 (de) * 1997-02-17 2004-01-07 SANYO ELECTRIC Co., Ltd. Elektronisches Bildaufnahme/Bildwiedergabegerät und Verfahren
US6324346B1 (en) 1998-05-19 2001-11-27 Asahi Kogaku Kogyo Kabushiki Kaisha Data erasure control system for camera
US6876393B1 (en) * 1999-02-10 2005-04-05 Nikon Corporation Electronic camera with battery capability consideration
EP1555605A2 (de) * 2004-01-19 2005-07-20 Ricoh Company, Ltd. Bilderzeugungsgerät, Löschungsverfahren, und Festplatteverwaltungsverfahren
US20050174675A1 (en) * 2004-01-19 2005-08-11 Yasuhiro Hattori Image forming apparatus, erasing method, and hard disk management method
EP1555605A3 (de) * 2004-01-19 2007-11-07 Ricoh Company, Ltd. Bilderzeugungsgerät, Löschungsverfahren, und Festplatteverwaltungsverfahren
US7509452B2 (en) 2004-01-19 2009-03-24 Ricoh Company, Ltd. Image forming apparatus, erasing method, and hard disk management method

Also Published As

Publication number Publication date
FR2659516B1 (fr) 1994-02-25
GB9102712D0 (en) 1991-03-27
GB2242560B (en) 1994-01-12
DE4103877A1 (de) 1991-08-14
GB2242560A (en) 1991-10-02
DE4103877C2 (de) 1997-05-22
FR2659516A1 (fr) 1991-09-13

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